Liliang Dou

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Low NOx burner for a water heater
- Patent number 9,587,854
- Issue date Mar 7, 2017
- A. O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Storeage gas water heater
- Patent number 9,568,213
- Issue date Feb 14, 2017
- A. O. Smith Corporation
- Bu Qiu
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Low NOx burner for a water heater
- Patent number 9,212,817
- Issue date Dec 15, 2015
- A. O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
LOW NOX BURNER FOR A WATER HEATER
- Publication number 20160061491
- Publication date Mar 3, 2016
- A.O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
LOW NOX BURNER FOR A WATER HEATER
- Publication number 20130247844
- Publication date Sep 26, 2013
- A.O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
STOREAGE GAS WATER HEATER
- Publication number 20120090562
- Publication date Apr 19, 2012
- Bu Qiu
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES